JPS63310Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic swing that swings with a swinging force generated by an external force and whose amplitude changes periodically.

A swing is something a person rides on and uses it to create swinging force by shifting the center of gravity.
It is also fun to play on a swing that swings automatically by applying this rocking force not by human power but from an external force. As such an automatic swing, one that applies the principle mechanism of a pendulum clock has already been provided. In a pendulum clock-type automatic swing, the seat is suspended at the lower end and the hanging arm is pivoted at the upper end. The cycle was constant and it was monotonous to ride and play with.

Therefore, the present invention was devised in view of the above problems, and it eliminates monotony by periodically changing the amplitude, thereby creating an automatic swing that you will not get tired of riding on. The purpose is to provide. Therefore, the characteristic feature is that a pair of left and right hanging arms 2 made of rod-shaped bodies are supported by the frame 1 so as to be able to swing back and forth, and at the middle of the upper part of each hanging arm 2, there is a The seat 3 is connected and held between the lower ends of the pair of hangers 2, and the swing fulcrum 4 is provided so that the seat 3 can be freely bent in the front-back direction.
A motor 6 is provided at a position spaced apart in the longitudinal direction from A pair of left and right connecting rods 8 are provided to connect the free end side of the crank arm 7 and the swinging fulcrum 4 of each hanger 2 in the front-rear direction.
The rotation of the motor 6 is transmitted to each swing fulcrum 4 via the connecting rod 8, and the swing fulcrums 4 are caused to swing back and forth in synchronization with the rotation of the motor 6.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a frame body that suspends and supports the swing. Reference numeral 2 denotes a hanger, which is a pair of rod-like bodies provided on the left and right sides, the upper end of which is supported by the frame 1 so as to be rotatable in the front-rear direction, and the seat 3 suspended from the lower end thereof. Reference numeral 4 denotes a swinging fulcrum, which is provided midway in the vertical direction of the hanger 2, and the hanger 2 is configured to be bendable at the swinging fulcrum 4. In the illustrated example, this swing fulcrum 4 is provided at a position slightly below the upper end of the hanger 2. And this swing fulcrum 4
A swinging mechanism 5 is connected to the hanger 2 to swing it back and forth.

This swinging mechanism 5 includes a motor 6, a pair of left and right crank arms 7 rotated by the motor 6, a pair of left and right connecting rods 8 connected to the arms 7, and a tip of the connecting rod 8 and a swinging fulcrum 4. and a connecting rod 9 that connects the two in a horizontal structure. The motor 6 is fixed on a mounting table 10 provided on the upper part of the frame 1. Reference numeral 11 is a power supply set for the motor 6.

Although the shape of the seat 3 in FIG. 1 and FIG. 2 is different, the one in FIG. 1 is a seat-type seat, and the one in FIG. 2 is a box-shaped seat with an upward opening.

According to the above-mentioned embodiment of the present invention, the rotational force of the motor 6 is converted into a reciprocating motion in the front and rear direction through the crank arm 7, the connecting rod 8, and the connecting rod 9 of the swing mechanism 5, and the swinging of the hanging arm 2 The suspension arm 2 begins to swing in the front-back direction due to the power transmitted to the fulcrum 4, and the seat 3 at the lower end also moves along with it.

At this time, the reciprocating period and stroke of the swing mechanism 5 are constant. On the other hand, the rocking period of seat 3 is
It becomes a constant value depending on the length of the hanger 2 from the swing fulcrum 4 to the seat 3. Here, if the period of the swinging mechanism 4 and the period of the seat 3 are set to be different from each other, the direction of movement of the connecting rod 9 and the direction of movement of the seat 3 will periodically coincide and mismatch. When the directions of movement coincide, the amplitude of the sheet 3 is increased (FIG. 3a), and in the opposite case (FIG. 3b) it is damped. Therefore, the amplitude of the sheet periodically increases or decreases, and exhibits complicated fluctuations due to period mismatch.

In this way, since the swinging fulcrum 4 is caused to swing by giving a reciprocating motion, the driving energy is extremely small compared to a pendulum clock type. That is, in the case of a pendulum clock type, the entire rotational force contributes to the swing, whereas in the case of the present invention, the movement of the swing mechanism 5 and the seat 3 are performed separately at the swing fulcrum 4, and there is no resonance effect. This is because the swinging motion of the seat 3 can be obtained.

Also, as shown in FIG. 2, it is good for the health of the baby to be laid sideways on the seat 3 and rocked.

Note that the present invention is not limited to the above embodiment, and the swing fulcrum 4 may be provided at the upper end of the hanger 2, and the swing mechanism 5 may be one using an air cylinder or a cam. It has the same effect even if Further, the reciprocating stroke and cycle of the swinging mechanism 5 may be freely changed. Furthermore, the frame 1 is not essential, and the ceiling of an existing building can also be used.

According to the present invention, a pair of left and right hanging arms 2 formed of rod-shaped bodies are supported by the frame 1 so as to be swingable back and forth,
A swinging fulcrum 4 is provided in the middle of the upper side of each hanger 2 so that the upper and lower sides thereof can be freely bent in the front-back direction. Transmitted to each swing fulcrum 4,
Since the swinging fulcrum 4 is caused to swing back and forth in synchronization with the rotation of the motor 6, the reciprocating period of the swinging fulcrum 4 of the hanger 2 can be freely set depending on the rotation speed of the motor 6, while the swinging of the seat 3 The period is from the swing fulcrum 4 to the seat 3
Since it is a constant value depending on the length of the hanging hand 2 up to,
Since the hanging hand 2 is a rod-shaped body, the swinging fulcrum 4
It is possible to easily set the oscillation period of the seat 3 and the oscillation period of the seat 3 to be different from each other, thereby periodically changing the amplitude of the seat 3 and causing the seat 3 to perform a complex oscillation motion. Therefore, it is possible to provide a variety of fun swings.

Moreover, since it is not necessary to match the rotation period of the motor 6 with the swing period of the seat 3 as described above, the speed adjustment of the motor 6 is easy, and the simplest motor 6 can be used, making it easy to manufacture and inexpensive. can be provided to In addition, since the rotation of the motor 6 is applied to the swinging fulcrum 4 through the crank arm 7 and connecting rod 8 to cause it to swing back and forth, the driving energy is as low as possible compared to a pendulum clock type. The practical effects are significant.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a front view of FIG. 1 with only the seat changed, and FIG. 3 is an explanatory diagram of movement. 2... Hanging hand, 3... Seat, 4... Swinging fulcrum,
5... Rocking mechanism.

Claims (1)

[Scope of utility model registration request] A pair of left and right hangers 2 made of rod-shaped bodies are supported by a frame 1 so as to be swingable back and forth, and a rocker is provided at the middle of the upper part of each hanger 2 so that the upper and lower sides thereof can be bent in the front-rear direction. A movable fulcrum 4 is provided, the seat 3 is connected and held between the lower ends of the pair of hangers 2, and a motor 6 is mounted at a position spaced apart from the oscillating fulcrum 4 in the front-rear direction so that the output shaft faces in the left-right direction. is provided, and a pair of left and right crank arms 7 are rotationally driven by a motor 6 around the output shaft of the motor 6, and the swinging ends of the pair of crank arms 7 and the swinging fulcrum 4 of each hanger 2 are moved back and forth. A pair of left and right connecting rods 8 are provided, which transmit the rotational force of the motor 6 to each swing fulcrum 4 via the crank arm 7 and the connecting rod 8, and synchronize the swing fulcrums 4 with the rotation of the motor 6. An automatic swing characterized by being configured to swing back and forth.